JP3684693B2 - External circuit handle device for circuit breaker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an external operation handle device for a circuit breaker in which a circuit breaker is housed in a box and the circuit breaker is opened and closed from the outside of the box.
[0002]
[Prior art]
In general, in an external operation handle device for a circuit breaker, a rotating handle is attached to an operation window of a lid, and the handle of the circuit breaker is opened and closed by rotating the rotating handle (for example, a special circuit breaker). Kaisho 53-129872). When the rotary handle is rotated and the handle of the circuit breaker is closed, for the sake of safety, a part of the rotary handle is locked to the locking portion formed inside the lid body. Prevents the body from opening, and when the handle of the circuit breaker is opened by rotating the rotary handle, part of the rotary handle can be unlocked by the locking part and the lid can be opened I have to.
[0003]
[Problems to be solved by the invention]
However, since the opening / closing direction of the handle of the circuit breaker and the rotating direction of the rotating handle are completely different directions, the structure of the rotating handle itself is complicated, and the locking structure of the lid is also complicated.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an external operation handle device for a circuit breaker having a simple structure and capable of easily preventing the lid from being opened for safety.
[0004]
[Means for Solving the Problems]
The external operation handle device for a circuit breaker according to claim 1 is a box body having an opening on one side and housing the circuit breaker inside, and a substantially U-shaped covering both sides of the circuit breaker. a there plate to have the operation portion for operating the handle via the engagement portion and having a support member mounted on the box body, the engaging portion for engaging the circuit breaker handle Both sides of the support member are slidably supported by the central portion of the support member and are movable in the same direction as the operation direction of the handle, and have an operation window for operating the operation unit. A lid attached to be openable and closable, and provided on the external operation handle main body and locked to the outer edge of the operation window when the handle is in an on position, and from the outer edge of the operation window at an off position. Opening prevention member to be unlocked It is those with a.
[0005]
According to the external operation handle device for a circuit breaker according to claim 1, since the handle of the circuit breaker is opened and closed by moving the external operation handle body, the structure is simpler and the number of parts can be reduced compared to the conventional rotary type. Can be reduced. Further, since the lid opening preventing member is locked to the outer surface of the lid body to prevent the lid opening, the structure is simple, the number of parts is not increased, and the lid body can be easily prevented from being opened.
[0006]
An external operation handle device for a circuit breaker according to claim 2 is a box body having an opening on one side and housing the circuit breaker inside, and a substantially U-shaped covering both sides of the circuit breaker. a there plate to have the operation portion for operating the handle via the engagement portion and having a support member mounted on the box body, the engaging portion for engaging the circuit breaker handle Both sides of the support member are slidably supported by the central portion of the support member, and have an external operation handle body that can move in the same direction as the operation direction of the handle, an operation window for operating the operation unit, and an open lid on the back surface. A lid having a locking part for prevention and attached to the opening so as to be openable and closable; and provided on the external operation handle body, the handle is locked to the locking part in the on position and in the off position. Unlock from the locking part It is obtained by a lid preventing member.
[0007]
According to the external operation handle device for a circuit breaker according to claim 2, since the handle of the circuit breaker is opened and closed by moving the external operation handle body, the structure is simpler and the number of parts can be reduced compared to the conventional rotary type. Can be reduced. Further, since the lid opening preventing member is locked to the inner locking portion of the lid body to prevent the lid opening, the structure is relatively simple, and the lid opening preventing member cannot be seen from the outside, so that the appearance is improved.
[0008]
According to a third aspect of the present invention, there is provided an external operation handle device for a circuit breaker according to the first or second aspect, wherein the handle is moved to a neutral position between the on position and the off position by the trip operation of the circuit breaker. The lid-opening prevention member performs the unlocking operation in a neutral posture of the handle.
According to the external operation handle device for the circuit breaker according to claim 3, in addition to the effect of claim 1 or 2, when the circuit breaker is forcibly opened due to overcurrent or short circuit current, the lid is immediately opened. It is possible to quickly investigate the cause of the circuit breaker breaking.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to FIGS. That is, the external operation handle device of this circuit breaker has a box 1, an external operation handle body 2, a lid 3, and a lid opening prevention member 4.
The box 1 has an opening 5 on one surface and houses a circuit breaker 6 inside. The box 1 according to the embodiment is attached to a wall, and is attached to a wooden or other attachment plate 1a formed on the bottom of the box 1 with the terminal portion 8 of the circuit breaker 6 facing up and down. The circuit breaker 6 moves the handle 7 to a neutral posture between the on position and the off position by the trip operation. Further, a substantially U-shaped support member 9 is covered so as to cover the circuit breaker 6, attachment holes 14 are formed at both ends thereof, and fixed to the bottom portion of the box body 1 with screws or the like through the attachment holes 14. A window 10 is formed in the central portion of the support member 9 so as to face the handle 7, and a vertical slide guide portion (not shown) is provided on the back side of the window 10, and the upper end of the support member 9 above the window 10 is provided. An insertion slit 11 is formed in the part.
[0010]
The external operation handle main body 2 has an engagement portion 12 that engages with the handle 7 of the circuit breaker 6 and an operation portion 13 that operates the handle 7 via the engagement portion 12. It is provided on the box 1 side so as to be movable in the same direction as the direction. In the embodiment, the external operation handle body 2 has a plate shape, the operation portion 13 protrudes on the front surface side, and the engagement portion 12 is recessed in the operation portion 13 from the back surface. The operation unit 13 protrudes from the window 10 while both sides of the external operation handle body 2 are slidably supported by the slide guide unit.
[0011]
The lid 3 has an operation window 15 for operating the operation unit 13 and is attached to the opening 5 so as to be freely opened and closed. In the embodiment, the hinge member 16 is rotatably attached to the right side of the opening 5. Further, the size of the operation window 15, the height of the support member 9, the dimensions of the operation member through the operation window, and the like so that the upper end portion of the support member 9 protrudes from the operation window 15 with the lid 3 closed. Is set. Reference numeral 17 denotes a handle.
[0012]
The lid opening prevention member 4 is provided on the external operation handle main body 2, and is engaged with the outer edge 15 a of the operation window 15 when the handle 7 is on, and from the outer edge 15 a of the operation window 15 when it is off. The lock is released. The lid opening prevention member 4 according to the embodiment is formed by extending the upper end portion of the external operation handle body 2 by a predetermined dimension and is inserted into the insertion slit 11 of the support member 9. The dimensions are set to release.
[0013]
In FIG. 1, the handle 7 is in an on state, and the lid opening preventing member 4 is locked to the outer edge 15 a of the operation window 15, so that the lid 3 cannot be opened.
FIG. 4 shows the handle 7 in the OFF state, and the lid 3 can be opened because the lid opening prevention member 4 is unlocked from the outer edge 15 a of the operation window 15.
FIG. 5 shows a tripping state of the handle 7, and the lid 3 can be opened because the lid opening prevention member 4 is unlocked from the outer edge 15 a of the operation window 15.
[0014]
According to this embodiment, the external operation handle main body 2 is moved to open and close the handle 7 of the circuit breaker 6, so that the structure is simple and the number of parts can be reduced as compared with the conventional rotary type. Further, since the lid opening prevention member 4 is locked to the outer surface of the lid body 3 to prevent the lid opening, the structure is simple, the number of parts is not increased, and the lid body 3 can be easily prevented from being opened.
[0015]
In addition, when the circuit breaker 6 is forcibly opened due to an overcurrent or a short-circuit current, the lid 3 can be opened immediately, and the cause of the circuit breaker 6 can be quickly identified.
A second embodiment of the present invention will be described with reference to FIGS. In other words, in the first embodiment, the external operation device for the circuit breaker is provided with the locking portion 20 for preventing the opening on the back surface of the lid 3, and the lid opening preventing member provided on the external operation handle body 2. 4 is locked to the locking portion 20 when the handle 7 is on, and is unlocked from the locking portion 20 at the off position and the neutral position. In the embodiment, the locking portion 20 fixes a piece of a plate bent in a substantially Z shape to the lid 3. Further, the operation window 15 is formed small so that only the operation section 13 protrudes from the operation window 15, the height of the support member 9 is lowered so that the central portion of the support member 9 does not penetrate, and the insertion slit 11 is closed. It is comprised so that it may be located in the back surface side of the cover body 3 of this. Reference numeral 21 denotes a screw for attaching the support member 9 to the attachment plate 1a.
[0016]
8 and 9 show the handle 7 in the ON state, and the lid opening prevention member 4 protrudes from the insertion slit 11 and is locked to the locking portion 20. For this reason, the lid 3 is prevented from opening.
FIG. 10 shows the handle 7 in the off state, and the lid opening prevention member 4 is located inside the insertion slit 11, and thus the lid body 3 can be opened.
[0017]
In FIG. 11, the handle 7 is in a neutral state, and the lid-opening prevention member 4 slightly protrudes from the insertion slit 11, but is away from the locking portion 20, so that the lid 3 can be opened.
According to this embodiment, as in the first embodiment, the external operation handle body 2 is moved to open and close the handle 7 of the circuit breaker 6, so that the structure is simpler than the conventional rotary type. The number of parts can be reduced. In addition, since the lid opening preventing member 4 is locked to the inner locking portion 20 of the lid body 3 to prevent the lid opening, the structure is relatively simple, and the lid opening preventing member 4 cannot be seen from the outside, so that the appearance is good. Become.
[0018]
In addition, the same code | symbol is attached | subjected to the part which is common in 1st Embodiment, and the structure and effect of a common part are the same as that of 1st Embodiment.
The external operation handle body 2 may be provided in the circuit breaker 6.
[0019]
【The invention's effect】
According to the external operation handle device for a circuit breaker according to claim 1, since the handle of the circuit breaker is opened and closed by moving the external operation handle body, the structure is simpler and the number of parts can be reduced compared to the conventional rotary type. Can be reduced. Further, since the lid opening preventing member is locked to the outer surface of the lid body to prevent the lid opening, the structure is simple, the number of parts is not increased, and the lid body can be easily prevented from being opened.
[0020]
According to the external operation handle device for a circuit breaker according to claim 2, since the handle of the circuit breaker is opened and closed by moving the external operation handle body, the structure is simpler and the number of parts can be reduced compared to the conventional rotary type. Can be reduced. Further, since the lid opening preventing member is locked to the inner locking portion of the lid body to prevent the lid opening, the structure is relatively simple, and the lid opening preventing member cannot be seen from the outside, so that the appearance is improved.
[0021]
According to the external operation handle device for the circuit breaker according to claim 3, in addition to the effect of claim 1 or 2, when the circuit breaker is forcibly opened due to overcurrent or short circuit current, the lid is immediately opened. It is possible to quickly investigate the cause of the circuit breaker breaking.
[Brief description of the drawings]
FIG. 1 is a perspective view of a state in which a handle according to a first embodiment of the present invention is on.
FIG. 2 is an exploded perspective view of a state in which the circuit breaker is removed in the opened state.
FIG. 3 is a perspective view of a state in which a circuit breaker is attached in the opened state.
FIG. 4 is a perspective view of the handle in an off state with the cover closed.
FIG. 5 is a perspective view of a handle in a neutral state.
FIG. 6 is an exploded perspective view in which a circuit breaker is removed in the open state of the second embodiment.
FIG. 7 is a perspective view of a state in which a circuit breaker is attached in an open state.
FIG. 8 is a perspective view showing a state in which the handle is turned on in the opened state.
FIG. 9 is a partial cross-sectional view thereof.
FIG. 10 is a partial cross-sectional view of the handle in an off state.
FIG. 11 is a partial cross-sectional view of the handle in a neutral state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Box body 2 External operation handle main body 3 Cover body 4 Opening prevention member 5 Opening 6 Circuit breaker 7 Handle 15 Operation window 15a Outer edge part 20 Locking part

Claims (3)

A box having an opening on one side and containing a circuit breaker therein ; a substantially U-shaped covering member covering the circuit breaker ; and both ends attached to the box; and the circuit breaker slidably supported with the center of the engagement portion via the a plate that have the operation portion for operating the handle on both sides unit the support member having an engagement portion engaged with a vessel handle An external operation handle body that is movable in the same direction as the operation direction of the handle, a lid body that has an operation window for operating the operation portion and is openably and closably attached to the opening, and the external operation handle body A circuit breaker provided with a lid opening prevention member that is provided on the handle and is locked to the outer edge of the operation window when the handle is in an on position and is unlocked from the outer edge of the operation window at an off position. External handle device for the container. A box having an opening on one side and containing a circuit breaker therein ; a substantially U-shaped covering member covering the circuit breaker ; and both ends attached to the box; and the circuit breaker slidably supported with the center of the engagement portion via the a plate that have the operation portion for operating the handle on both sides unit the support member having an engagement portion engaged with a vessel handle The main body has an external operation handle body that can be moved in the same direction as the operation direction of the handle, an operation window for operating the operation portion, and a locking portion for preventing the opening of the lid on the back surface so that the opening can be opened and closed. A lid attached to the external operation handle body, and a lid-opening prevention member that is provided on the external operation handle main body and that is locked to the locking portion when the handle is on and unlocked from the locking portion when the handle is off. External circuit handle for equipped circuit breaker Location.  2. The circuit breaker is configured such that the handle moves to a neutral posture between an on position and an off position by a trip operation, and the lid opening preventing member performs an unlocking operation in a neutral posture of the handle. Or the external operation handle apparatus of the circuit breaker of Claim 2.

Images